“…Among them, 12 variables commonly reported in five or more [186][187][188][189][190][191][193][194][195][196], the relationships between emotional labor or its subscales and other variables were analyzed. Among the studies, 23 studies [67,69,70,[79][80][81]87,89,94,107,112,119,127,131,135,148,153,161,162,164,174,188,191,195] were excluded, as these studies only reported the relationships between the subscales of emotional labor and other variables. In total, the relationships between emotional labor and a total of 63 variables were analyzed.…”